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Electrostatics Physics - Electrostatics

Jharkhand Board (JAC) - STD 12 Science - Physics (Jharkhand - English Medium). 673 questions in this chapter.

Question types

Electrostatics question types

673 questions across 1 question group — pick any mix to generate a Physics paper with step-by-step answer keys.

673
Questions
1
Question groups
5
Question types
Sample Questions

Electrostatics questions

One sample from each question group in this chapter. Select any group above to see the full set with answer keys.

Q 1M.C.Q (1 Marks)1 Mark
Assertion : A parallel plate capacitor is connected across battery through a key. A dielectric slab of constant K is introduced between the plates. The energy which is stored becomes K times.
Reason : The surface density of charge on the plate remains constant or unchanged.
  • A
    If both assertion and reason are true and the reason is the correct explanation of the assertion.
  • B
    If both assertion and reason are true but reason is not the correct explanation of the assertion.
  • ✓
    If assertion is true but reason is false.
  • D
    If the assertion and reason both are false.

Answer: C.

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Q 2M.C.Q (1 Marks)1 Mark
Assertion : The tyres of aircraft's are slightly conducting.
Reason : If a conductor is connected to ground, the extra charge induced on conductor will flow to ground.
  • A
    If both assertion and reason are true and the reason is the correct explanation of the assertion.
  • ✓
     If both assertion and reason are true but reason is not the correct explanation of the assertion.
  • C
    If assertion is true but reason is false.
  • D
     If the assertion and reason both are false.

Answer: B.

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Q 3M.C.Q (1 Marks)1 Mark
Assertion : Circuit containing capacitors should be handled cautiously even when there is no current.
Reason : The capacitors are very delicate and so quickly break down..
  • A
     If both assertion and reason are true and the reason is the correct explanation of the assertion.
  • B
     If both assertion and reason are true but reason is not the correct explanation of the assertion.
  • ✓
    If assertion is true but reason is false.
  • D
     If the assertion and reason both are false.

Answer: C.

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Q 4M.C.Q (1 Marks)1 Mark
Assertion : The lightening conductor at the top of high building has sharp pointed ends.
Reason : The surface density of charge at sharp points is very high resulting in setting up of electric wind.
  • ✓
     If both assertion and reason are true and the reason is the correct explanation of the assertion.
  • B
     If both assertion and reason are true but reason is not the correct explanation of the assertion.
  • C
     If assertion is true but reason is false.
  • D
     If the assertion and reason both are false.

Answer: A.

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Q 5M.C.Q (1 Marks)1 Mark
Assertion : The force with which one plate of a parallel plate capacitor is attracted towards the other plate is equal to square of surface density per e per unit area.
Reason : The electric field due to one charged plate of the capacitor at the location of the other is equal to surface density per e.
  • A
     If both assertion and reason are true and the reason is the correct explanation of the assertion.
  • B
     If both assertion and reason are true but reason is not the correct explanation of the assertion.
  • C
     If assertion is true but reason is false.
  • ✓
    If the assertion and reason both are false. 

Answer: D.

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